Let me clarify my last comment about 'doubling hardware'. Dual core CPUs currently excel in an envoirnment where there is lots of multi-tasking going on, so, just going by the basics, a game, or atleast the graphical aspect of games would also have to be multi-tasked somehow for GPUs to see its full potential. Games right now, currently do not work like this. Now, if nVidias SLI did what the original SLI (scan line interleave) did, maybe it could perform better. I do not know if this is possible, because of IP, and what not, or if this is in fact what nVidias SLI does, but I seem to recall SLI Voodoo's scaling better.